pipe down
US /paɪp daʊn/
UK /paɪp daʊn/

1.
diam, tenang
used to tell someone to stop talking or to be quiet
:
•
Will you two just pipe down? I'm trying to concentrate.
Bisakah kalian berdua diam saja? Aku sedang mencoba berkonsentrasi.
•
The teacher told the noisy students to pipe down.
Guru menyuruh siswa yang berisik untuk diam.